CN111908944A - Self-heat-preservation high-strength environment-friendly concrete and preparation method thereof - Google Patents
Self-heat-preservation high-strength environment-friendly concrete and preparation method thereof Download PDFInfo
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- CN111908944A CN111908944A CN202010820518.5A CN202010820518A CN111908944A CN 111908944 A CN111908944 A CN 111908944A CN 202010820518 A CN202010820518 A CN 202010820518A CN 111908944 A CN111908944 A CN 111908944A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
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- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses self-heat-insulation high-strength environment-friendly concrete which comprises the following raw materials in parts by weight: 100-120 parts of silicate cement, 40-50 parts of fine sand, 15-25 parts of foamed polyurethane resin, 20-30 parts of fly ash, 5-15 parts of modified wollastonite, 12-18 parts of blast furnace slag powder, 1-5 parts of an interface agent, 5-10 parts of a sodium lignosulfonate water reducing agent and 80-100 parts of deionized water. The invention adopts inorganic raw materials such as portland cement, fine sand, fly ash, blast furnace slag powder and the like as main agents, and foamed polyurethane resin, an interface agent and modified wollastonite as auxiliary agents to enhance the strength and the heat preservation performance of concrete.
Description
Technical Field
The invention belongs to the technical field of concrete. More particularly, relates to self-heat-insulation high-strength environment-friendly concrete and a preparation method thereof.
Background
Concrete is one of the most important civil engineering materials of the present generation. The artificial stone is prepared by a cementing material, granular aggregate (also called aggregate), water, an additive and an admixture which are added if necessary according to a certain proportion, and is formed by uniformly stirring, compacting, forming, curing and hardening. The concrete has the characteristics of rich raw materials, low price and simple production process, so that the consumption of the concrete is increased more and more. Meanwhile, the concrete also has the characteristics of high compressive strength, good durability, wide strength grade range and the like. These characteristics make it very widely used, not only in various civil engineering, that is shipbuilding, machinery industry, ocean development, geothermal engineering, etc., but also concrete is an important material.
Chinese patent document publication No. CN103755240B discloses a heat-insulating concrete, which comprises the following components in parts by weight: 800 parts of 750-fold cement, 25-30 parts of polyurethane particles, 10-15 parts of polystyrene foam particles, 8-12 parts of ceramsite, 15-20 parts of foaming agent and 850 parts of 800-fold water; in the document, although the heat preservation effect can be improved by adopting the composite addition of the polystyrene foam particles and the polyurethane particles, the interface compatibility of the polystyrene foam particles and the polyurethane with inorganic materials such as cement in concrete is poor, and the strength performance of the concrete is reduced.
Therefore, there is a need for providing an environmentally friendly concrete that integrates self-insulation and high strength.
Disclosure of Invention
The invention aims to provide self-heat-preservation high-strength environment-friendly concrete and a preparation method thereof, and aims to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention also provides self-heat-preservation high-strength environment-friendly concrete which comprises the following raw materials in parts by weight:
100-120 parts of silicate cement, 40-50 parts of fine sand, 15-25 parts of foamed polyurethane resin, 20-30 parts of fly ash, 5-15 parts of modified wollastonite, 12-18 parts of blast furnace slag powder, 1-5 parts of an interface agent, 5-10 parts of a sodium lignosulfonate water reducing agent and 80-100 parts of deionized water.
Preferably, the self-heat-insulation high-strength environment-friendly concrete comprises the following raw materials in parts by weight: 110-115 parts of Portland cement, 42-48 parts of fine sand, 17-22 parts of foamed polyurethane resin, 21-28 parts of fly ash, 7-12 parts of modified wollastonite, 13-16 parts of blast furnace slag powder, 2-4 parts of an interface agent, 6-9 parts of a sodium lignosulfonate water reducing agent and 85-95 parts of deionized water.
Preferably, the self-heat-insulation high-strength environment-friendly concrete comprises the following raw materials in parts by weight: 110 parts of Portland cement, 45 parts of fine sand, 20 parts of foamed polyurethane resin, 25 parts of fly ash, 10 parts of modified wollastonite, 15 parts of blast furnace slag powder, 3 parts of an interface agent, 7.5 parts of a sodium lignosulfonate water reducing agent and 90 parts of deionized water.
Preferably, the preparation method of the foaming polyurethane resin comprises the following steps:
the method comprises the following steps: preparation of the modified additive: grinding bentonite through 100-200 meshes, adding the bentonite into sodium dodecyl sulfate for ultra-dispersion for 20-30min, taking out the bentonite with the ultrasonic power of 100-200W, drying, and irradiating the bentonite by adopting an electron beamThe irradiation energy is 220-280keV, and the implantation amount is 2-4X 104cm；
Step two: cyclodextrin modified polyurethane resin: firstly, foaming polyurethane resin by adopting a foaming agent, then feeding the polyurethane resin and cyclodextrin into a pressure tank, and stirring for 30-40min at the pressure of 10-20Mpa, wherein the stirring speed is 100-;
step three: preparing foamed polyurethane resin: and D, performing high-pressure injection treatment on the raw materials in the step II by adopting a modified additive.
Preferably, the foaming agent of the foaming treatment is n-pentane, and the foaming temperature is 110-150 ℃.
Preferably, the specific conditions of the high-pressure spray treatment are as follows: compressed air is used as power, the air pressure value of the compressed air is 0.2-0.5MPa, and the high-speed jet beam is jetted at the speed of 3-4 m/s.
Preferably, the preparation method of the modified wollastonite comprises the following steps: grinding wollastonite through 200-mesh and 300-mesh, soaking the wollastonite in a sodium alginate solution, adding hydrochloric acid to adjust the pH value to 4.5-5.5, adding disodium ethylene diamine tetraacetate, stirring the wollastonite at a high speed of 1500r/min for 10-20min, and filtering, washing and drying the wollastonite to obtain the modified wollastonite.
Preferably, the preparation method of the interfacial agent comprises the following steps: adding rare earth lanthanum chloride into the nano titanium dioxide solution, then adopting plasma irradiation treatment, finally adding cobalt sulfate and ferric sulfate, and continuing stirring for 10-20min at the stirring speed of 150-.
Preferably, the frequency of the cold plasma treatment is 8-12MHz, the power is 210-230W, the working gas is nitrogen, the gas flow rate is 180-220mL/min, and the treatment time is 1-5 min.
The invention also provides a method for preparing the self-heat-preservation high-strength environment-friendly concrete, which is characterized by comprising the following steps of: sequentially adding portland cement, fine sand, foamed polyurethane resin, fly ash, modified wollastonite, blast furnace slag powder, an interface agent, a sodium lignosulfonate water reducing agent and deionized water into a stirrer for stirring and mixing, wherein the stirring speed is 1000-1500r/min, the stirring time is 25-35min, then adding the interface agent and the modified wollastonite, the stirring speed is reduced to 250-350r/min, and stirring is 55-65min, so as to obtain the self-insulation high-strength environment-friendly concrete.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention adopts inorganic raw materials such as portland cement, fine sand, fly ash, blast furnace slag powder and the like as main agents, and foamed polyurethane resin, an interface agent and modified wollastonite as auxiliary agents to enhance the strength and the heat preservation performance of the product; the polyurethane resin is firstly foamed in the preparation of the foamed polyurethane resin, so that a foaming system in a product is enlarged, the heat preservation effect is favorably improved, the cyclodextrin is modified after foaming and has a cavity structure, the interior of the cyclodextrin is hydrophobic, and the exterior of the cyclodextrin is hydrophilic.
(2) The modified additive takes bentonite as a base material, is dispersed in a sodium dodecyl sulfate mode to enhance the dispersion effect, improves the activity performance through electron beam irradiation, is easier to combine with a cyclodextrin outer cavity during spray treatment, and simultaneously, the bentonite has a lamellar structure and can be inserted into a matrix, so that the bentonite is more closely attached to and inserted into the cyclodextrin outer cavity, and the interface compatibility of the cyclodextrin matrix is better improved.
(3) The modified wollastonite has a needle-shaped structure, can be further inserted into the concrete raw materials, and is matched with the interface agent to enhance the connectivity between the concrete raw materials, so that the strength performance of the concrete is obviously improved.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the self-heat-insulation high-strength environment-friendly concrete comprises the following raw materials in parts by weight:
100 parts of Portland cement, 40 parts of fine sand, 15 parts of foamed polyurethane resin, 20 parts of fly ash, 5 parts of modified wollastonite, 12 parts of blast furnace slag powder, 1 part of interface agent, 5 parts of sodium lignosulfonate water reducing agent and 80 parts of deionized water.
The preparation method of the foamed polyurethane resin of the embodiment comprises the following steps:
the method comprises the following steps: preparation of the modified additive: grinding 10 parts of bentonite to 100 meshes, adding the ground bentonite into 40 parts of sodium dodecyl sulfate, performing ultra-dispersion for 20min with the ultrasonic power of 100W, taking out, drying, and performing electron beam irradiation treatment with the irradiation energy of 220keV and the injection amount of 2 multiplied by 104cm；
Step two: cyclodextrin modified polyurethane resin: foaming 10 parts of polyurethane resin by using 2 parts of foaming agent, and then feeding the polyurethane resin and 5 parts of cyclodextrin into a pressure tank to stir for 30min at the pressure of 10Mpa, wherein the stirring speed is 100 r/min;
step three: preparing foamed polyurethane resin: and D, performing high-pressure injection treatment on the raw materials in the step two by adopting 20 parts of modified additive.
The blowing agent used in the foaming treatment of this example was n-pentane, and the foaming temperature was 110 ℃.
Specific conditions of the high-pressure injection treatment of the present embodiment are: compressed air is used as power, the air pressure value of the compressed air is 0.2MPa, and the high-speed jet beam is jetted at the speed of 3 m/s.
The preparation method of the modified wollastonite in the embodiment comprises the following steps: grinding 40 parts of wollastonite by 200 meshes, soaking the wollastonite by 100 parts of sodium alginate solution, adding hydrochloric acid to adjust the pH value to 4.5, adding 2 parts of disodium ethylene diamine tetraacetate, stirring the mixture at a high speed of 1000r/min for 10min, and finally filtering, washing and drying the mixture to obtain the modified wollastonite.
The preparation method of the interfacial agent of the embodiment comprises the following steps: adding 5 parts of rare earth lanthanum chloride into 40 parts of nano titanium dioxide solution, then adopting plasma irradiation treatment, finally adding 2 parts of cobalt sulfate and 1 part of ferric sulfate, and continuing stirring for 10min at the stirring speed of 150 r/min.
The frequency of the cold plasma treatment in this example was 8MHz, the power was 210W, the working gas was nitrogen, the gas flow rate was 180mL/min, and the treatment time was 1 min.
The invention also provides a method for preparing the self-heat-preservation high-strength environment-friendly concrete, which is characterized by comprising the following steps of: sequentially adding portland cement, fine sand, foamed polyurethane resin, fly ash, modified wollastonite, blast furnace slag powder, an interface agent, a sodium lignosulfonate water reducing agent and deionized water into a stirrer to be stirred and mixed, wherein the stirring speed is 1000r/min, the stirring time is 25min, then adding the interface agent and the modified wollastonite, reducing the stirring speed to 250r/min, and stirring for 55min to obtain the self-heat-preservation high-strength environment-friendly concrete.
Example 2:
the self-heat-insulation high-strength environment-friendly concrete comprises the following raw materials in parts by weight:
120 parts of Portland cement, 50 parts of fine sand, 25 parts of foamed polyurethane resin, 30 parts of fly ash, 15 parts of modified wollastonite, 18 parts of blast furnace slag powder, 5 parts of an interface agent, 10 parts of a sodium lignosulfonate water reducing agent and 100 parts of deionized water.
The preparation method of the foamed polyurethane resin of the embodiment comprises the following steps:
the method comprises the following steps: preparation of the modified additive: grinding 10 parts of bentonite to 200 meshes, adding the bentonite into 40 parts of sodium dodecyl sulfate, performing ultra-dispersion for 30min with ultrasonic power of 200W, taking out, drying, and performing electron beam irradiation treatment with irradiation energy of 280keV and injection amount of 4 multiplied by 104cm；
Step two: cyclodextrin modified polyurethane resin: foaming 10 parts of polyurethane resin by using 2 parts of foaming agent, and then feeding the polyurethane resin and 5 parts of cyclodextrin into a pressure tank to stir for 40min at the pressure of 20Mpa, wherein the stirring speed is 200 r/min;
step three: preparing foamed polyurethane resin: and D, performing high-pressure injection treatment on the raw materials in the step two by adopting 20 parts of modified additive.
The blowing agent used in the foaming treatment of this example was n-pentane, and the foaming temperature was 150 ℃.
Specific conditions of the high-pressure injection treatment of the present embodiment are: compressed air is used as power, the air pressure value of the compressed air is 0.5MPa, and the high-speed jet beam is jetted at the speed of 4 m/s.
The preparation method of the modified wollastonite in the embodiment comprises the following steps: grinding 40 parts of wollastonite by 300 meshes, soaking the wollastonite by using 100 parts of sodium alginate solution, adding hydrochloric acid to adjust the pH value to 5.5, adding 2 parts of disodium ethylene diamine tetraacetate, stirring the mixture at a high speed of 1500r/min for 20min, and finally filtering, washing and drying the mixture to obtain the modified wollastonite.
The preparation method of the interfacial agent of the embodiment comprises the following steps: adding 5 parts of rare earth lanthanum chloride into 40 parts of nano titanium dioxide solution, then adopting plasma irradiation treatment, finally adding 2 parts of cobalt sulfate and 1 part of ferric sulfate, and continuing stirring for 20min, wherein the stirring speed is 250 r/min.
The frequency of the cold plasma treatment in this example was 12MHz, the power was 230W, the working gas was nitrogen, the gas flow rate was 220mL/min, and the treatment time was 5 min.
The invention also provides a method for preparing the self-heat-preservation high-strength environment-friendly concrete, which is characterized by comprising the following steps of: sequentially adding portland cement, fine sand, foamed polyurethane resin, fly ash, modified wollastonite, blast furnace slag powder, an interface agent, a sodium lignosulfonate water reducing agent and deionized water into a stirrer to be stirred and mixed, wherein the stirring speed is 1500r/min, the stirring time is 35min, then adding the interface agent and the modified wollastonite, reducing the stirring speed to 350r/min, and stirring for 65min to obtain the self-heat-preservation high-strength environment-friendly concrete.
Example 3:
the self-heat-insulation high-strength environment-friendly concrete comprises the following raw materials in parts by weight:
110 parts of Portland cement, 45 parts of fine sand, 20 parts of foamed polyurethane resin, 25 parts of fly ash, 10 parts of modified wollastonite, 15 parts of blast furnace slag powder, 3 parts of an interface agent, 7.5 parts of a sodium lignosulfonate water reducing agent and 90 parts of deionized water.
The preparation method of the foamed polyurethane resin of the present example was:
the method comprises the following steps: preparation of the modified additive: grinding 10 parts of bentonite to 150 meshes, adding 45 parts of bentonite into sodium dodecyl sulfate, performing ultra-dispersion for 25min with ultrasonic power of 150W, taking out, drying, and performing electron beam irradiation treatment with irradiation energy of 250keV and injection amount of 3 × 104cm；
Step two: cyclodextrin modified polyurethane resin: foaming 10 parts of polyurethane resin by using 3.5 parts of foaming agent, and then feeding the polyurethane resin and 5 parts of cyclodextrin into a pressure tank to stir for 35min at the pressure of 15Mpa, wherein the stirring speed is 150 r/min;
step three: preparing foamed polyurethane resin: and D, performing high-pressure injection treatment on the raw materials in the step II by adopting 15 parts of modified additive.
The blowing agent used in the foaming treatment of this example was n-pentane, and the foaming temperature was 120 ℃.
Specific conditions of the high-pressure injection treatment of the present embodiment are: compressed air is used as power, the air pressure value of the compressed air is 0.35MPa, and the high-speed jet beam is jetted at the speed of 3.5 m/s.
Grinding 40 parts of wollastonite by 200 meshes, soaking the wollastonite by using 100 parts of sodium alginate solution, adding hydrochloric acid to adjust the pH value to 4.5, adding 3 parts of disodium ethylene diamine tetraacetate, stirring the mixture at a high speed of 1000r/min for 10min, and finally filtering, washing and drying the mixture to obtain the modified wollastonite.
The preparation method of the interfacial agent of the embodiment comprises the following steps: adding 5 parts of rare earth lanthanum chloride into 45 parts of nano titanium dioxide solution, then adopting plasma irradiation treatment, finally adding 3 parts of cobalt sulfate and 3 parts of ferric sulfate, and continuing stirring for 10min at the stirring speed of 150 r/min.
The frequency of the cold plasma treatment in this example was 10MHz, the power was 220W, the working gas was nitrogen, the gas flow rate was 200mL/min, and the treatment time was 3 min.
The invention also provides a method for preparing the self-heat-preservation high-strength environment-friendly concrete, which is characterized by comprising the following steps of: sequentially adding portland cement, fine sand, foamed polyurethane resin, fly ash, modified wollastonite, blast furnace slag powder, an interface agent, a sodium lignosulfonate water reducing agent and deionized water into a stirrer to be stirred and mixed, wherein the stirring speed is 1250r/min, the stirring time is 30min, then adding the interface agent and the modified wollastonite, reducing the stirring speed to 300r/min, and stirring for 60min to obtain the self-heat-preservation high-strength environment-friendly concrete.
Comparative example 1:
the materials and preparation process were substantially the same as those of example 3, except that the foamed polyurethane resin was not modified with cyclodextrin.
Comparative example 2:
the material and the preparation process are basically the same as those of the example 3, except that the cyclodextrin modified polyurethane resin is not sprayed with the modified additive.
Comparative example 3:
the materials and preparation process were substantially the same as those of example 3, except that the modified wollastonite was not added.
Comparative example 4:
the materials and preparation process were substantially the same as those of example 3, except that no interfacial agent was added.
Comparative example 5:
basically the same materials and preparation process as those in example 3, except that the coating prepared by the method and the raw materials in example 1 in the heat-insulating concrete is disclosed in Chinese patent publication No. CN103755240B for testing.
Testing the concrete heat conductivity coefficient according to a GB/TI10294-2008 test method; the strength performance of the product is tested by adopting the standard of the test method of the mechanical property of common concrete (GB/T50081-2002); the test results are shown in table 1 below;
| group of | Coefficient of thermal conductivity W/m.K | Compressive strength (MPa) |
| Example 1 | 0.065 | 124.3 |
| Example 2 | 0.071 | 107.9 |
| Example 3 | 0.059 | 118.6 |
| Comparative example 1 | 0.528 | 90.4 |
| Comparative example 2 | 0.365 | 96.1 |
| Comparative example 3 | 0.248 | 76.5 |
| Comparative example 4 | 0.133 | 91.2 |
| Comparative example 5 | 0.268 | 98.2 |
TABLE 1
As can be seen from Table 1, the product of example 3 of the invention has the optimum thermal conductivity and compressive strength, and the foamed polyurethane resin is not modified by cyclodextrin, so that the thermal conductivity is obviously improved, and the compressive strength is reduced, therefore, the thermal insulation and strength properties are improved in a coordinated manner by using the cyclodextrin modification. And if the cyclodextrin modified polyurethane resin is not sprayed with the modified additive, the thermal conductivity coefficient of the concrete is improved and the compressive strength of the concrete is reduced.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The self-heat-insulation high-strength environment-friendly concrete is characterized by comprising the following raw materials in parts by weight:
100-120 parts of silicate cement, 40-50 parts of fine sand, 15-25 parts of foamed polyurethane resin, 20-30 parts of fly ash, 5-15 parts of modified wollastonite, 12-18 parts of blast furnace slag powder, 1-5 parts of an interface agent, 5-10 parts of a sodium lignosulfonate water reducing agent and 80-100 parts of deionized water.
2. The self-heat-insulation high-strength environment-friendly concrete according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 110-115 parts of Portland cement, 42-48 parts of fine sand, 17-22 parts of foamed polyurethane resin, 21-28 parts of fly ash, 7-12 parts of modified wollastonite, 13-16 parts of blast furnace slag powder, 2-4 parts of an interface agent, 6-9 parts of a sodium lignosulfonate water reducing agent and 85-95 parts of deionized water.
3. The self-heat-insulation high-strength environment-friendly concrete according to claim 2, which is characterized by comprising the following raw materials in parts by weight: 110 parts of Portland cement, 45 parts of fine sand, 20 parts of foamed polyurethane resin, 25 parts of fly ash, 10 parts of modified wollastonite, 15 parts of blast furnace slag powder, 3 parts of an interface agent, 7.5 parts of a sodium lignosulfonate water reducing agent and 90 parts of deionized water.
4. The self-heat-insulation high-strength environment-friendly concrete according to claim 1, characterized in that the preparation method of the foaming polyurethane resin comprises the following steps:
the method comprises the following steps: preparation of the modified additive: grinding bentonite through 100-200 meshes, adding the bentonite into sodium dodecyl sulfate for ultra-dispersion for 20-30min, taking out the bentonite with the ultrasonic power of 100-200W, drying, and performing electron beam irradiation treatment with the irradiation energy of 220-280keV and the injection amount of 2-4 multiplied by 104cm；
Step two: cyclodextrin modified polyurethane resin: firstly, foaming polyurethane resin by adopting a foaming agent, then feeding the polyurethane resin and cyclodextrin into a pressure tank, and stirring for 30-40min at the pressure of 10-20Mpa, wherein the stirring speed is 100-;
step three: preparing foamed polyurethane resin: and D, performing high-pressure injection treatment on the raw materials in the step II by adopting a modified additive.
5. The self-insulation high-strength environment-friendly concrete as claimed in claim 4, wherein the foaming agent for the foaming treatment is n-pentane, and the foaming temperature is 110-150 ℃.
6. The self-heat-insulation high-strength environment-friendly concrete according to claim 4, wherein the specific conditions of the high-pressure injection treatment are as follows: compressed air is used as power, the air pressure value of the compressed air is 0.2-0.5MPa, and the high-speed jet beam is jetted at the speed of 3-4 m/s.
7. The self-insulation high-strength environment-friendly concrete according to claim 1, characterized in that the preparation method of the modified wollastonite comprises the following steps: grinding wollastonite through 200-mesh and 300-mesh, soaking the wollastonite in a sodium alginate solution, adding hydrochloric acid to adjust the pH value to 4.5-5.5, adding disodium ethylene diamine tetraacetate, stirring the wollastonite at a high speed of 1500r/min for 10-20min, and filtering, washing and drying the wollastonite to obtain the modified wollastonite.
8. The self-heat-preservation high-strength environment-friendly concrete according to claim 1, characterized in that the preparation method of the interfacial agent comprises the following steps: adding rare earth lanthanum chloride into the nano titanium dioxide solution, then adopting plasma irradiation treatment, finally adding cobalt sulfate and ferric sulfate, and continuing stirring for 10-20min at the stirring speed of 150-.
9. The self-heat-insulation high-strength environment-friendly concrete as claimed in claim 8, wherein the frequency of the cold plasma treatment is 8-12MHz, the power is 210-230W, the working gas is nitrogen, the gas flow rate is 180-220mL/min, and the treatment time is 1-5 min.
10. A method for preparing the self-insulation high-strength environment-friendly concrete as claimed in any one of claims 1 to 9, which comprises the following steps: sequentially adding portland cement, fine sand, foamed polyurethane resin, fly ash, modified wollastonite, blast furnace slag powder, an interface agent, a sodium lignosulfonate water reducing agent and deionized water into a stirrer for stirring and mixing, wherein the stirring speed is 1000-1500r/min, the stirring time is 25-35min, then adding the interface agent and the modified wollastonite, the stirring speed is reduced to 250-350r/min, and stirring is 55-65min, so as to obtain the self-insulation high-strength environment-friendly concrete.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755240A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Thermal insulation concrete |
| CN107216093A (en) * | 2017-06-20 | 2017-09-29 | 武汉理工大学 | A kind of interface enhancing lightweight concrete and preparation method thereof |
| CN108585925A (en) * | 2018-06-28 | 2018-09-28 | 江苏百瑞吉新材料有限公司 | A kind of self heat-preserving concrete building block |
| CN108726944A (en) * | 2018-06-13 | 2018-11-02 | 合肥永泰新型建材有限公司 | A kind of strong concrete and preparation method thereof with incubation and thermal insulation function |
| CN109400020A (en) * | 2018-11-13 | 2019-03-01 | 长江水利委员会长江科学院 | A kind of high-strength insulation anti-crack concrete and preparation method thereof |
| CN110698929A (en) * | 2019-10-25 | 2020-01-17 | 安徽开林新材料股份有限公司 | Ship anticorrosive paint capable of improving bonding strength and preparation method thereof |
-
2020
- 2020-08-14 CN CN202010820518.5A patent/CN111908944A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103755240A (en) * | 2013-12-19 | 2014-04-30 | 柳州正菱集团有限公司 | Thermal insulation concrete |
| CN107216093A (en) * | 2017-06-20 | 2017-09-29 | 武汉理工大学 | A kind of interface enhancing lightweight concrete and preparation method thereof |
| CN108726944A (en) * | 2018-06-13 | 2018-11-02 | 合肥永泰新型建材有限公司 | A kind of strong concrete and preparation method thereof with incubation and thermal insulation function |
| CN108585925A (en) * | 2018-06-28 | 2018-09-28 | 江苏百瑞吉新材料有限公司 | A kind of self heat-preserving concrete building block |
| CN109400020A (en) * | 2018-11-13 | 2019-03-01 | 长江水利委员会长江科学院 | A kind of high-strength insulation anti-crack concrete and preparation method thereof |
| CN110698929A (en) * | 2019-10-25 | 2020-01-17 | 安徽开林新材料股份有限公司 | Ship anticorrosive paint capable of improving bonding strength and preparation method thereof |
Non-Patent Citations (6)
| Title |
|---|
| 全国造价工程师执业资格考试培训教材编审委员会: "《建设工程技术与计量（土木建筑工程）》", 31 May 2017, 中国计划出版社 * |
| 吴清主编: "《物理药剂学》", 30 November 2018, 中国中医药出版社 * |
| 夏寿荣编著: "《最新混凝土外加剂生产配方精选400例》", 31 January 2014, 中国建材工业出版社 * |
| 庄绪杰: ""β-环糊精/聚氨酯复合材料的制备及结构与性能研究"", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
| 李应权等主编: "《泡沫混凝土的研究与应用》", 31 December 2018, 中国建材工业出版社 * |
| 马兴元等编著: "《合成革化学与工艺学》", 30 November 2015, 中国轻工业出版社 * |
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